Magneto-mechanical interplay in spin-polarized point contacts
Mesoscale and Nanoscale Physics
2009-11-11 v1
Abstract
We investigate the interplay between magnetic and structural dynamics in ferromagnetic atomic point contacts. In particular, we look at the effect of the atomic relaxation on the energy barrier for magnetic domain wall migration and, reversely, at the effect of the magnetic state on the mechanical forces and structural relaxation. We observe changes of the barrier height due to the atomic relaxation up to 200%, suggesting a very strong coupling between the structural and the magnetic degrees of freedom. The reverse interplay is weak, i.e. the magnetic state has little effect on the structural relaxation at equilibrium or under non-equilibrium, current-carrying conditions.
Cite
@article{arxiv.cond-mat/0601200,
title = {Magneto-mechanical interplay in spin-polarized point contacts},
author = {Maria Stamenova and Sudhakar Sahoo and Cristian G. Sanchez and Tchavdar N. Todorov and Stefano Sanvito},
journal= {arXiv preprint arXiv:cond-mat/0601200},
year = {2009}
}
Comments
5 pages, 4 figures